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ffmpeg.wasm-core
Commit cd8d8457 authored by Diego Biurrun's avatar Diego Biurrun
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qt-faststart: K&R reformatting; fix comment typos

parent ae51b1a9
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Showing with 45 additions and 45 deletions
tools/qt-faststart.c
View file @ cd8d8457
......@@ -30,29 +30,31 @@
#include <string.h>
#ifdef __MINGW32__
#define fseeko(x,y,z) fseeko64(x,y,z)
#define ftello(x) ftello64(x)
#define fseeko(x, y, z) fseeko64(x, y, z)
#define ftello(x) ftello64(x)
#endif
#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
(((uint8_t*)(x))[1] << 16) | \
(((uint8_t*)(x))[2] << 8) | \
#define BE_16(x) ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
#define BE_32(x) ((((uint8_t*)(x))[0] << 24) | \
(((uint8_t*)(x))[1] << 16) | \
(((uint8_t*)(x))[2] << 8) | \
((uint8_t*)(x))[3])
#define BE_64(x) (((uint64_t)(((uint8_t*)(x))[0]) << 56) | \
((uint64_t)(((uint8_t*)(x))[1]) << 48) | \
((uint64_t)(((uint8_t*)(x))[2]) << 40) | \
((uint64_t)(((uint8_t*)(x))[3]) << 32) | \
((uint64_t)(((uint8_t*)(x))[4]) << 24) | \
((uint64_t)(((uint8_t*)(x))[5]) << 16) | \
((uint64_t)(((uint8_t*)(x))[6]) << 8) | \
((uint64_t)((uint8_t*)(x))[7]))
#define BE_FOURCC( ch0, ch1, ch2, ch3 ) \
( (uint32_t)(unsigned char)(ch3) | \
( (uint32_t)(unsigned char)(ch2) << 8 ) | \
( (uint32_t)(unsigned char)(ch1) << 16 ) | \
( (uint32_t)(unsigned char)(ch0) << 24 ) )
#define BE_64(x) (((uint64_t)(((uint8_t*)(x))[0]) << 56) | \
((uint64_t)(((uint8_t*)(x))[1]) << 48) | \
((uint64_t)(((uint8_t*)(x))[2]) << 40) | \
((uint64_t)(((uint8_t*)(x))[3]) << 32) | \
((uint64_t)(((uint8_t*)(x))[4]) << 24) | \
((uint64_t)(((uint8_t*)(x))[5]) << 16) | \
((uint64_t)(((uint8_t*)(x))[6]) << 8) | \
((uint64_t)( (uint8_t*)(x))[7]))
#define BE_FOURCC(ch0, ch1, ch2, ch3) \
( (uint32_t)(unsigned char)(ch3) | \
((uint32_t)(unsigned char)(ch2) << 8) | \
((uint32_t)(unsigned char)(ch1) << 16) | \
((uint32_t)(unsigned char)(ch0) << 24) )
#define QT_ATOM BE_FOURCC
/* top level atoms */
......@@ -71,16 +73,16 @@
#define STCO_ATOM QT_ATOM('s', 't', 'c', 'o')
#define CO64_ATOM QT_ATOM('c', 'o', '6', '4')
#define ATOM_PREAMBLE_SIZE 8
#define COPY_BUFFER_SIZE 1024
#define ATOM_PREAMBLE_SIZE 8
#define COPY_BUFFER_SIZE 1024
int main(int argc, char *argv[])
{
FILE *infile = NULL;
FILE *outfile = NULL;
unsigned char atom_bytes[ATOM_PREAMBLE_SIZE];
uint32_t atom_type = 0;
uint64_t atom_size = 0;
uint32_t atom_type = 0;
uint64_t atom_size = 0;
uint64_t atom_offset = 0;
uint64_t last_offset;
unsigned char *moov_atom = NULL;
......@@ -95,7 +97,7 @@ int main(int argc, char *argv[])
int bytes_to_copy;
if (argc != 3) {
printf ("Usage: qt-faststart <infile.mov> <outfile.mov>\n");
printf("Usage: qt-faststart <infile.mov> <outfile.mov>\n");
return 0;
}
......@@ -116,7 +118,7 @@ int main(int argc, char *argv[])
if (fread(atom_bytes, ATOM_PREAMBLE_SIZE, 1, infile) != 1) {
break;
}
atom_size = (uint32_t)BE_32(&atom_bytes[0]);
atom_size = (uint32_t) BE_32(&atom_bytes[0]);
atom_type = BE_32(&atom_bytes[4]);
/* keep ftyp atom */
......@@ -125,8 +127,8 @@ int main(int argc, char *argv[])
free(ftyp_atom);
ftyp_atom = malloc(ftyp_atom_size);
if (!ftyp_atom) {
printf ("could not allocate %"PRIu64" byte for ftyp atom\n",
atom_size);
printf("could not allocate %"PRIu64" bytes for ftyp atom\n",
atom_size);
goto error_out;
}
fseeko(infile, -ATOM_PREAMBLE_SIZE, SEEK_CUR);
......@@ -165,7 +167,7 @@ int main(int argc, char *argv[])
(atom_type != PICT_ATOM) &&
(atom_type != UUID_ATOM) &&
(atom_type != FTYP_ATOM)) {
printf ("encountered non-QT top-level atom (is this a Quicktime file?)\n");
printf("encountered non-QT top-level atom (is this a QuickTime file?)\n");
break;
}
atom_offset += atom_size;
......@@ -178,7 +180,7 @@ int main(int argc, char *argv[])
}
if (atom_type != MOOV_ATOM) {
printf ("last atom in file was not a moov atom\n");
printf("last atom in file was not a moov atom\n");
free(ftyp_atom);
fclose(infile);
return 0;
......@@ -187,12 +189,11 @@ int main(int argc, char *argv[])
/* moov atom was, in fact, the last atom in the chunk; load the whole
* moov atom */
fseeko(infile, -atom_size, SEEK_END);
last_offset = ftello(infile);
last_offset = ftello(infile);
moov_atom_size = atom_size;
moov_atom = malloc(moov_atom_size);
moov_atom = malloc(moov_atom_size);
if (!moov_atom) {
printf ("could not allocate %"PRIu64" byte for moov atom\n",
atom_size);
printf("could not allocate %"PRIu64" bytes for moov atom\n", atom_size);
goto error_out;
}
if (fread(moov_atom, atom_size, 1, infile) != 1) {
......@@ -203,7 +204,7 @@ int main(int argc, char *argv[])
/* this utility does not support compressed atoms yet, so disqualify
* files with compressed QT atoms */
if (BE_32(&moov_atom[12]) == CMOV_ATOM) {
printf ("this utility does not support compressed moov atoms yet\n");
printf("this utility does not support compressed moov atoms yet\n");
goto error_out;
}
......@@ -215,15 +216,15 @@ int main(int argc, char *argv[])
for (i = 4; i < moov_atom_size - 4; i++) {
atom_type = BE_32(&moov_atom[i]);
if (atom_type == STCO_ATOM) {
printf (" patching stco atom...\n");
printf(" patching stco atom...\n");
atom_size = BE_32(&moov_atom[i - 4]);
if (i + atom_size - 4 > moov_atom_size) {
printf (" bad atom size\n");
printf(" bad atom size\n");
goto error_out;
}
offset_count = BE_32(&moov_atom[i + 8]);
for (j = 0; j < offset_count; j++) {
current_offset = BE_32(&moov_atom[i + 12 + j * 4]);
current_offset = BE_32(&moov_atom[i + 12 + j * 4]);
current_offset += moov_atom_size;
moov_atom[i + 12 + j * 4 + 0] = (current_offset >> 24) & 0xFF;
moov_atom[i + 12 + j * 4 + 1] = (current_offset >> 16) & 0xFF;
......@@ -232,15 +233,15 @@ int main(int argc, char *argv[])
}
i += atom_size - 4;
} else if (atom_type == CO64_ATOM) {
printf (" patching co64 atom...\n");
printf(" patching co64 atom...\n");
atom_size = BE_32(&moov_atom[i - 4]);
if (i + atom_size - 4 > moov_atom_size) {
printf (" bad atom size\n");
printf(" bad atom size\n");
goto error_out;
}
offset_count = BE_32(&moov_atom[i + 8]);
for (j = 0; j < offset_count; j++) {
current_offset = BE_64(&moov_atom[i + 12 + j * 8]);
current_offset = BE_64(&moov_atom[i + 12 + j * 8]);
current_offset += moov_atom_size;
moov_atom[i + 12 + j * 8 + 0] = (current_offset >> 56) & 0xFF;
moov_atom[i + 12 + j * 8 + 1] = (current_offset >> 48) & 0xFF;
......@@ -275,7 +276,7 @@ int main(int argc, char *argv[])
/* dump the same ftyp atom */
if (ftyp_atom_size > 0) {
printf (" writing ftyp atom...\n");
printf(" writing ftyp atom...\n");
if (fwrite(ftyp_atom, ftyp_atom_size, 1, outfile) != 1) {
perror(argv[2]);
goto error_out;
......@@ -283,14 +284,14 @@ int main(int argc, char *argv[])
}
/* dump the new moov atom */
printf (" writing moov atom...\n");
printf(" writing moov atom...\n");
if (fwrite(moov_atom, moov_atom_size, 1, outfile) != 1) {
perror(argv[2]);
goto error_out;
}
/* copy the remainder of the infile, from offset 0 -> last_offset - 1 */
printf (" copying rest of file...\n");
printf(" copying rest of file...\n");
while (last_offset) {
if (last_offset > COPY_BUFFER_SIZE)
bytes_to_copy = COPY_BUFFER_SIZE;
......@@ -305,7 +306,6 @@ int main(int argc, char *argv[])
perror(argv[2]);
goto error_out;
}
last_offset -= bytes_to_copy;
}
......
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